The lead essay, by Samuel Beckett, bore the equally eccentric, if quieter, title of "Dante ... Bruno. Vico .. Joyce". Each dot in the Beckett essay's title represents a century of real time: Dante in the 14th century, Bruno in the 17th, Vico in the 18th, and Joyce in the 20th. Of course, Beckett didn't explain all this: he left it up to us to figure out (much like Joyce himself): what Joyce called "the ideal reader with ideal insomnia". The period after "Bruno" is really just a single dot, but the publisher couldn't be expect to know that.
Joyce himself contributed an essay (at least we think so) under the name of Vladimir Dixon, entitled "A Litter to Mr. James Joyce" where he refers to him(self) as "my dear Mr. Germ's Choice" and "Shame's Voice". He was assuming the role of his own first hostile critic.